print("");


# 1.字符串转int
int1 = int("12");
print(type(int1), int1);

# 2.float转int
int2 = int(12.2);
print(type(int2), int2);

# 3.字符串转float
float1 = float("12.2");
print(type(float1), float1);

# 4.int转float
float2 = float(12);
print(type(float2), float2);

# 5.int转字符串
str1 = str(12);
print(type(str1), str1);

# 6.float转字符串
str2 = str(12.2);
print(type(str2), str2);